Toy.



Patented Aug. l2, i902. F. A. RICHTER.

TOY.

(Application filed Feb. 13, 1902.

(No Modem wlawooa 5 nonms PEYEIS cc. PHOTO-'LITMQ, AQHNG N, n. c.

UNITED STATES PATENT OFFICE.

FRIEDRICH ADOLF RICHTER, OF RUDOLSTADT, GERMANY.

TOY.

SPECIFICATION forming part a Letters Patent No. 706,689, dated August 12, 1902. Application filed February 13, 1902. Serial No. 93,980. (No model.)

The invention consists, essentially, of the peculiar construction of the stones or pieces and of the board on which they are arranged.

In order to render the present specification easily intelligible, reference is had to the accompanying drawings, in which similar letters of reference denotesimilar parts throughout the several views.

Figure l is a perspective View of one of the Fig. 2 isa vertical'section Fig. 3 is a perspective stones or pieces. through the same. elevation showing a part of the board with some of the pieces arranged thereon, and Fig. 4 is a similar elevation showing the board and pieces reversed.

The pieces a of which the mosaic pattern is formed or built up may be of circular form, as shown, or they may be rectangulanand one face of each piece is provided with a recess b, the opposite face being provided with a corresponding projection c. The recess and the projection are advantageously of not necessarily becircular or' spherical in form. They may also-becylindrical or rec tangularin shape. The board in connection with which the pieces are used may be of any suitable material-such as cardboard, wood, or the like-and is provided with a series of recesses d, which correspond to the projections 0 of the pieces and the convex exterior of which corresponds to the concave recess 1) of the piece. f

As will be readily understood from Fig. 3 the pieces a may be placed on. the board e with the concave side upward, the convex side of the depressions of the board being at the under side of the same, or the said pieces may be placed on the board with the convex part upward, the board having been turned over, so that the convex surfaces of the depressions will be atthe upper surface of the same. From the above description it will be seen that both the board and the pieces may -,board e should of course correspond in shape .and size with the form of the pieces, so that the latter may be placed in or over the same, according to which side of the board is utilized, as illustrated in Figs. 3 and 4. The particular shape of the pieces produces very pretty and surprising light effects, which may be varied by reversing the parts, as previously described. The board may be mounted in a box or case and provided-with holes f instead of recesses, in which case the pieces may be used on one side only.

I claim as my invention-- 1. In a toy for producing various mosaic patterns by means of interchangeable pieces, the combination of recesses and projections on the pieces and depressions in the board to receive the projections of the pieces, the exterior surface of said'depressions being adapted to fit the recesses of the pieces at the op- -posite side substantially as described. similar shape and dimensions, but they need 2., In a toy consisting of a board on which a series of colored pieces are arranged to produce a mosaic pattern,.the combination of a set of pieces having a depression in the form of a spherical segment on one face and a corresponding expression on the opposite face and a board havinga set of correspondinglyshaped depressions and expressions at its opposite sides substantially as described.

In witness whereof I have hereunto setmy hand in presence of two witnesses.

FRIEDRICH ADOLF RICHTER. Witnesses:

O. B. DRUGULIN, J. WALLEISER. 

